Hi Matthew,
It's possible to use Data.Compact.Serialize to write a compact to a
file or read it back. Directly serializing via ByteStrings has also
been discussed before, see link below. Hope this helps!
https://hackage.haskell.org/package/compact
https://github.com/ezyang/compact/issues/3
On Fr
Hi all,
When an MVar# primop blocks, it jumps to a function in
HeapStackCheck.cmm which pushes a RET_SMALL stack frame before
returning to the scheduler (e.g. the takeMVar# primop jumps to
stg_block_takemvar for stack adjustment). But these functions directly
bump Sp without checking for possible
How about using `hscCompileCoreExprHook` to intercept the `CoreExpr`
from the ghci pipeline? There exist GHC API to evaluate a String to a
ForeignHValue iirc; we are not interested in the final ForeignHValue
in this case, we just want the CoreExpr, and the logic of generating
and linking BCO can be
u, Oct 10, 2019 at 8:54 PM Csaba Hruska wrote:
>>
>> It's a primitive type.
>> https://gitlab.haskell.org/ghc/ghc/blob/master/compiler/prelude/primops.txt.pp#L1388
>> https://gitlab.haskell.org/ghc/ghc/wikis/commentary/prim-ops
>>
>> Cheers,
>>
Hello devs,
I've been trying to figure out how to pass lifted types as foreign
types, then encountered the following code in the `DsCCall` module
(https://gitlab.haskell.org/ghc/ghc/blob/master/compiler/deSugar/DsCCall.hs#L172):
```
-- Byte-arrays, both mutable and otherwise; hack warning
--
: 0, upd: 8;
}
base_GHCziBase_breakpoint_entry() // [R2]
{ []
}
{offset
chvW: // global
R1 = R2;
call stg_ap_0_fast(R1) args: 8, res: 0, upd: 8;
}
```
This looks suspicious. I'm curious if this is intended behavior of ghc.
Reg
Hi,
I believe it's mentioned here:
https://ghc.haskell.org/trac/ghc/wiki/Commentary/Rts/Storage/GC/RememberedSets
Regards,
Shao Cheng
On Fri, Jan 18, 2019, 12:34 PM chessai . wrote:
> Ryan,
>
> That makes perfect sense, thanks. Is that documented explicitly anywhere?
> If
Indeed, the boot.sh script is likely what you are looking for. To
compile `base` and retrieve Core for it, you just need to set up an
empty package database, use the Setup.hs script in base to compile it,
and load your plugin via "--ghc-option=.." provided to `Setup
configure`.
On Wed, Dec 5, 2018
Hi,
Joachim Breitner's veggies(https://github.com/nomeata/veggies) project is a
good example of using a vanilla ghc installation to compile standard
libraries like base.
On Tue, Dec 4, 2018, 10:11 AM Bill Hallahan
wrote:
> Hi,
>
> I'm writing a program analyzer that operates on GHC Core. Curre
it isn't supposed to be a home
plugin to be compiled and used on the fly. A typical use case would be
compiling/installing the plugin to a standalone pkgdb, then used to
compile other packages.
>
> On 5 Oct 2018, at 1:52 AM, Shao, Cheng wrote:
>
> Adding "pluggable bac
g works
via a pile of hacks upon hacks in ghc-toolkit, and it's not good for
reuse.
* The newly added backend plugins shouldn't have visible
correctness/performance impact if they're not used, and it's just a
few local modifications in the ghc codebase.
> On Thu, Oct 4, 201
feature.
Best,
Shao Cheng
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other library to link, or
something else has gone wrong? Thank you.
__
On Sun, Sep 2, 2018 at 10:06 PM, Shao, Cheng wrote:
> Hi folks,
>
> I'm building a Haskell/C++ hybrid project with a recent revision of
> ghc on Windows, and noticed that cc1plus.exe always segfaults. The
>
ll version/urls when configuring ghc?
I notice there's an "--enable-distro-toolchain" flag, does it work
with building a bindist? Thank you.
Regards,
Shao Cheng
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Hi,
IIRC those packages can be "reinstalled", just build & register into a
fresh package database and add it to the pkgdb stack, ghc can shadow
the ones in the global pkgdb.
Regards,
Shao Cheng
On Tue, Aug 7, 2018 at 10:39 AM, Moritz Angermann
wrote:
> Dear friends,
>
&g
Compiling GHC on a blockchain may not be economical, but running
GHC-compiled programs on a blockchain is definitely a great idea! I've even
come up with a paper title: A Secure Decentralized Transactional
Implementation of Spinless Tagless G-machine, aka Haskoin!
Time to recruiting a few engineer
ing that I should run “C:\msys64\msys2_shell.cmd -mingw64
> -mintty" just once, after installing? Or repeatedly? Or that I should
> somehow us it as my main shell? And what does that commend actually do?
>
> Sorry to be dense
>
>
>
> Simon
>
>
>
> *From:* g
Hi Simon,
If the build environment is managed by an MSYS2 installation, then the
MinGW64 shell startup script automatically sets up "MSYSTEM" for you. It
can be launched like "C:\msys64\msys2_shell.cmd -mingw64 -mintty".
On Mon, Mar 26, 2018 at 5:46 PM, Simon Peyton Jones via ghc-devs <
ghc-devs@
Hi all,
Is the "cml_cont" field of the CmmCall variant is really used in practice?
I traversed the output of raw Cmm produced by ghc compiling the whole base
package, but the value of cml_cont is always Nothing.
Regards,
Shao Cheng
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Hi all, is it possible for a 64-bit ghc to emit 32-bit code, if I supply a
custom ghcPrimIface via Hooks and also modify the platform flags in
DynFlags? The module does not import Prelude and has no dependencies other
than GHC.Prim.
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Hi,
IIRC you can already use hscFrontendHook in the DynFlags hooks to retrieve
TcGblEnv, and with a little bit of work, also HsParsedModule.
Regards,
Shao Cheng
On Fri, Jan 19, 2018, 5:41 PM Matthew Pickering
wrote:
> I have too wanted this in the past and made a post to a similar effect
&
t produce error, and it is properly
registered by ghc-pkg, so I've no idea why there's a bad interface file. Do
you have any ideas on possible causes? Thanks a lot.
Greetings,
Shao Cheng
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their STG/Cmm representations? Thank a lot.
Cheers,
Shao Cheng
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